net/sfc: support flow item TCP in transfer rules
[dpdk.git] / drivers / net / sfc / sfc.c
index 406386a..a4fe495 100644 (file)
@@ -1,7 +1,7 @@
 /* SPDX-License-Identifier: BSD-3-Clause
  *
- * Copyright (c) 2016-2018 Solarflare Communications Inc.
- * All rights reserved.
+ * Copyright(c) 2019-2020 Xilinx, Inc.
+ * Copyright(c) 2016-2019 Solarflare Communications Inc.
  *
  * This software was jointly developed between OKTET Labs (under contract
  * for Solarflare) and Solarflare Communications, Inc.
@@ -16,6 +16,7 @@
 #include "efx.h"
 
 #include "sfc.h"
+#include "sfc_debug.h"
 #include "sfc_log.h"
 #include "sfc_ev.h"
 #include "sfc_rx.h"
@@ -30,7 +31,7 @@ sfc_dma_alloc(const struct sfc_adapter *sa, const char *name, uint16_t id,
 {
        const struct rte_memzone *mz;
 
-       sfc_log_init(sa, "name=%s id=%u len=%lu socket_id=%d",
+       sfc_log_init(sa, "name=%s id=%u len=%zu socket_id=%d",
                     name, id, len, socket_id);
 
        mz = rte_eth_dma_zone_reserve(sa->eth_dev, name, id, len,
@@ -51,6 +52,11 @@ sfc_dma_alloc(const struct sfc_adapter *sa, const char *name, uint16_t id,
        esmp->esm_mz = mz;
        esmp->esm_base = mz->addr;
 
+       sfc_info(sa,
+                "DMA name=%s id=%u len=%lu socket_id=%d => virt=%p iova=%lx",
+                name, id, len, socket_id, esmp->esm_base,
+                (unsigned long)esmp->esm_addr);
+
        return 0;
 }
 
@@ -148,7 +154,8 @@ sfc_check_conf(struct sfc_adapter *sa)
                rc = EINVAL;
        }
 
-       if (conf->intr_conf.rxq != 0) {
+       if (conf->intr_conf.rxq != 0 &&
+           (sa->priv.dp_rx->features & SFC_DP_RX_FEAT_INTR) == 0) {
                sfc_err(sa, "Receive queue interrupt not supported");
                rc = EINVAL;
        }
@@ -198,7 +205,7 @@ sfc_estimate_resource_limits(struct sfc_adapter *sa)
                MIN(encp->enc_txq_limit,
                    limits.edl_max_evq_count - 1 - limits.edl_max_rxq_count);
 
-       if (sa->tso)
+       if (sa->tso && encp->enc_fw_assisted_tso_v2_enabled)
                limits.edl_max_txq_count =
                        MIN(limits.edl_max_txq_count,
                            encp->enc_fw_assisted_tso_v2_n_contexts /
@@ -240,8 +247,8 @@ sfc_estimate_resource_limits(struct sfc_adapter *sa)
        return 0;
 
 fail_get_vi_pool:
-fail_nic_init:
        efx_nic_fini(sa->nic);
+fail_nic_init:
        return rc;
 }
 
@@ -434,7 +441,20 @@ sfc_start(struct sfc_adapter *sa)
 
        sa->state = SFC_ADAPTER_STARTING;
 
+       rc = 0;
        do {
+               /*
+                * FIXME Try to recreate vSwitch on start retry.
+                * vSwitch is absent after MC reboot like events and
+                * we should recreate it. May be we need proper
+                * indication instead of guessing.
+                */
+               if (rc != 0) {
+                       sfc_sriov_vswitch_destroy(sa);
+                       rc = sfc_sriov_vswitch_create(sa);
+                       if (rc != 0)
+                               goto fail_sriov_vswitch_create;
+               }
                rc = sfc_try_start(sa);
        } while ((--start_tries > 0) &&
                 (rc == EIO || rc == EAGAIN || rc == ENOENT || rc == EINVAL));
@@ -447,6 +467,7 @@ sfc_start(struct sfc_adapter *sa)
        return 0;
 
 fail_try_start:
+fail_sriov_vswitch_create:
        sa->state = SFC_ADAPTER_CONFIGURED;
 fail_bad_state:
        sfc_log_init(sa, "failed %d", rc);
@@ -610,18 +631,45 @@ sfc_close(struct sfc_adapter *sa)
        sfc_log_init(sa, "done");
 }
 
+static efx_rc_t
+sfc_find_mem_bar(efsys_pci_config_t *configp, int bar_index,
+                efsys_bar_t *barp)
+{
+       efsys_bar_t result;
+       struct rte_pci_device *dev;
+
+       memset(&result, 0, sizeof(result));
+
+       if (bar_index < 0 || bar_index >= PCI_MAX_RESOURCE)
+               return EINVAL;
+
+       dev = configp->espc_dev;
+
+       result.esb_rid = bar_index;
+       result.esb_dev = dev;
+       result.esb_base = dev->mem_resource[bar_index].addr;
+
+       *barp = result;
+
+       return 0;
+}
+
 static int
-sfc_mem_bar_init(struct sfc_adapter *sa, unsigned int membar)
+sfc_mem_bar_init(struct sfc_adapter *sa, const efx_bar_region_t *mem_ebrp)
 {
        struct rte_eth_dev *eth_dev = sa->eth_dev;
        struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev);
        efsys_bar_t *ebp = &sa->mem_bar;
-       struct rte_mem_resource *res = &pci_dev->mem_resource[membar];
+       struct rte_mem_resource *res =
+               &pci_dev->mem_resource[mem_ebrp->ebr_index];
 
        SFC_BAR_LOCK_INIT(ebp, eth_dev->data->name);
-       ebp->esb_rid = membar;
+       ebp->esb_rid = mem_ebrp->ebr_index;
        ebp->esb_dev = pci_dev;
        ebp->esb_base = res->addr;
+
+       sa->fcw_offset = mem_ebrp->ebr_offset;
+
        return 0;
 }
 
@@ -683,6 +731,7 @@ sfc_rss_attach(struct sfc_adapter *sa)
        efx_intr_fini(sa->nic);
 
        rte_memcpy(rss->key, default_rss_key, sizeof(rss->key));
+       rss->dummy_rss_context = EFX_RSS_CONTEXT_DEFAULT;
 
        return 0;
 
@@ -725,6 +774,10 @@ sfc_attach(struct sfc_adapter *sa)
        if (rc != 0)
                goto fail_nic_reset;
 
+       rc = sfc_sriov_attach(sa);
+       if (rc != 0)
+               goto fail_sriov_attach;
+
        /*
         * Probed NIC is sufficient for tunnel init.
         * Initialize tunnel support to be able to use libefx
@@ -744,14 +797,19 @@ sfc_attach(struct sfc_adapter *sa)
        sa->priv.shared->tunnel_encaps =
                encp->enc_tunnel_encapsulations_supported;
 
-       if (sa->priv.dp_tx->features & SFC_DP_TX_FEAT_TSO) {
-               sa->tso = encp->enc_fw_assisted_tso_v2_enabled;
+       if (sfc_dp_tx_offload_capa(sa->priv.dp_tx) & DEV_TX_OFFLOAD_TCP_TSO) {
+               sa->tso = encp->enc_fw_assisted_tso_v2_enabled ||
+                         encp->enc_tso_v3_enabled;
                if (!sa->tso)
                        sfc_info(sa, "TSO support isn't available on this adapter");
        }
 
-       if (sa->tso && sa->priv.dp_tx->features & SFC_DP_TX_FEAT_TSO_ENCAP) {
-               sa->tso_encap = encp->enc_fw_assisted_tso_v2_encap_enabled;
+       if (sa->tso &&
+           (sfc_dp_tx_offload_capa(sa->priv.dp_tx) &
+            (DEV_TX_OFFLOAD_VXLAN_TNL_TSO |
+             DEV_TX_OFFLOAD_GENEVE_TNL_TSO)) != 0) {
+               sa->tso_encap = encp->enc_fw_assisted_tso_v2_encap_enabled ||
+                               encp->enc_tso_v3_enabled;
                if (!sa->tso_encap)
                        sfc_info(sa, "Encapsulated TSO support isn't available on this adapter");
        }
@@ -799,16 +857,36 @@ sfc_attach(struct sfc_adapter *sa)
        if (rc != 0)
                goto fail_filter_attach;
 
+       rc = sfc_mae_attach(sa);
+       if (rc != 0)
+               goto fail_mae_attach;
+
        sfc_log_init(sa, "fini nic");
        efx_nic_fini(enp);
 
        sfc_flow_init(sa);
 
+       /*
+        * Create vSwitch to be able to use VFs when PF is not started yet
+        * as DPDK port. VFs should be able to talk to each other even
+        * if PF is down.
+        */
+       rc = sfc_sriov_vswitch_create(sa);
+       if (rc != 0)
+               goto fail_sriov_vswitch_create;
+
        sa->state = SFC_ADAPTER_INITIALIZED;
 
        sfc_log_init(sa, "done");
        return 0;
 
+fail_sriov_vswitch_create:
+       sfc_flow_fini(sa);
+       sfc_mae_detach(sa);
+
+fail_mae_attach:
+       sfc_filter_detach(sa);
+
 fail_filter_attach:
        sfc_rss_detach(sa);
 
@@ -827,7 +905,9 @@ fail_intr_attach:
 fail_estimate_rsrc_limits:
 fail_tunnel_init:
        efx_tunnel_fini(sa->nic);
+       sfc_sriov_detach(sa);
 
+fail_sriov_attach:
 fail_nic_reset:
 
        sfc_log_init(sa, "failed %d", rc);
@@ -841,14 +921,18 @@ sfc_detach(struct sfc_adapter *sa)
 
        SFC_ASSERT(sfc_adapter_is_locked(sa));
 
+       sfc_sriov_vswitch_destroy(sa);
+
        sfc_flow_fini(sa);
 
+       sfc_mae_detach(sa);
        sfc_filter_detach(sa);
        sfc_rss_detach(sa);
        sfc_port_detach(sa);
        sfc_ev_detach(sa);
        sfc_intr_detach(sa);
        efx_tunnel_fini(sa->nic);
+       sfc_sriov_detach(sa);
 
        sa->state = SFC_ADAPTER_UNINITIALIZED;
 }
@@ -1011,11 +1095,43 @@ sfc_nic_probe(struct sfc_adapter *sa)
        return 0;
 }
 
+static efx_rc_t
+sfc_pci_config_readd(efsys_pci_config_t *configp, uint32_t offset,
+                    efx_dword_t *edp)
+{
+       int rc;
+
+       rc = rte_pci_read_config(configp->espc_dev, edp->ed_u32, sizeof(*edp),
+                                offset);
+
+       return (rc < 0 || rc != sizeof(*edp)) ? EIO : 0;
+}
+
+static int
+sfc_family(struct sfc_adapter *sa, efx_bar_region_t *mem_ebrp)
+{
+       struct rte_eth_dev *eth_dev = sa->eth_dev;
+       struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev);
+       efsys_pci_config_t espcp;
+       static const efx_pci_ops_t ops = {
+               .epo_config_readd = sfc_pci_config_readd,
+               .epo_find_mem_bar = sfc_find_mem_bar,
+       };
+       int rc;
+
+       espcp.espc_dev = pci_dev;
+
+       rc = efx_family_probe_bar(pci_dev->id.vendor_id,
+                                 pci_dev->id.device_id,
+                                 &espcp, &ops, &sa->family, mem_ebrp);
+
+       return rc;
+}
+
 int
 sfc_probe(struct sfc_adapter *sa)
 {
-       struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(sa->eth_dev);
-       unsigned int membar;
+       efx_bar_region_t mem_ebrp;
        efx_nic_t *enp;
        int rc;
 
@@ -1027,21 +1143,23 @@ sfc_probe(struct sfc_adapter *sa)
        rte_atomic32_init(&sa->restart_required);
 
        sfc_log_init(sa, "get family");
-       rc = efx_family(pci_dev->id.vendor_id, pci_dev->id.device_id,
-                       &sa->family, &membar);
+       rc = sfc_family(sa, &mem_ebrp);
        if (rc != 0)
                goto fail_family;
-       sfc_log_init(sa, "family is %u, membar is %u", sa->family, membar);
+       sfc_log_init(sa,
+                    "family is %u, membar is %u, function control window offset is %lu",
+                    sa->family, mem_ebrp.ebr_index, mem_ebrp.ebr_offset);
 
        sfc_log_init(sa, "init mem bar");
-       rc = sfc_mem_bar_init(sa, membar);
+       rc = sfc_mem_bar_init(sa, &mem_ebrp);
        if (rc != 0)
                goto fail_mem_bar_init;
 
        sfc_log_init(sa, "create nic");
        rte_spinlock_init(&sa->nic_lock);
        rc = efx_nic_create(sa->family, (efsys_identifier_t *)sa,
-                           &sa->mem_bar, &sa->nic_lock, &enp);
+                           &sa->mem_bar, mem_ebrp.ebr_offset,
+                           &sa->nic_lock, &enp);
        if (rc != 0)
                goto fail_nic_create;
        sa->nic = enp;
@@ -1141,3 +1259,47 @@ sfc_register_logtype(const struct rte_pci_addr *pci_addr,
 
        return ret;
 }
+
+struct sfc_hw_switch_id {
+       char    board_sn[RTE_SIZEOF_FIELD(efx_nic_board_info_t, enbi_serial)];
+};
+
+int
+sfc_hw_switch_id_init(struct sfc_adapter *sa,
+                     struct sfc_hw_switch_id **idp)
+{
+       efx_nic_board_info_t board_info;
+       struct sfc_hw_switch_id *id;
+       int rc;
+
+       if (idp == NULL)
+               return EINVAL;
+
+       id = rte_zmalloc("sfc_hw_switch_id", sizeof(*id), 0);
+       if (id == NULL)
+               return ENOMEM;
+
+       rc = efx_nic_get_board_info(sa->nic, &board_info);
+       if (rc != 0)
+               return rc;
+
+       memcpy(id->board_sn, board_info.enbi_serial, sizeof(id->board_sn));
+
+       *idp = id;
+
+       return 0;
+}
+
+void
+sfc_hw_switch_id_fini(__rte_unused struct sfc_adapter *sa,
+                     struct sfc_hw_switch_id *id)
+{
+       rte_free(id);
+}
+
+bool
+sfc_hw_switch_ids_equal(const struct sfc_hw_switch_id *left,
+                       const struct sfc_hw_switch_id *right)
+{
+       return strcmp(left->board_sn, right->board_sn) == 0;
+}